Chess tactic

Crushing Puzzle (685)

After the setup move Rb8, it is White to move. Find the forcing continuation before checking the solution.

Position after Rb8. White to move.

Puzzle ID

0hB8w

Rating

685

Side to move

White

Themes

Crushing, Endgame, Promotion

Material

Black is ahead by 4 points

FEN

1r6/3K3p/2P3p1/8/6PP/8/k7/8 w - - 1 49

What to look for

Find a move that decisively changes the evaluation, usually by force.

49. c7 49... Rb4 50. c8=Q

The full forcing line from the source position is:

48... Rb8 49. c7 49... Rb4 50. c8=Q